The Chinese word "树木" is a compound noun formed through the semantic combination of two characters, both fundamentally related to the concept of a tree. The first character, "树" (shù), primarily means "tree" as a singular, individual plant or can mean "to plant". The second character, "木" (mù), originally means "tree" or "wood" as a material. When combined, "树木" (shùmù) functions as a collective or plural noun, meaning "trees" in a general sense, emphasizing the idea of multiple trees or the concept of trees as a collective entity, thereby enriching the meaning beyond a single instance.